The file 'Simple Iris Mechanism 3D Printer Model' is (stl) file type, size is 124.3KB.
Try to interpret this build timelapse I made: https://www.youtube.com/watch?v=kgrmFgtNRnE&t=16s
The case top and bottom get glued togethether, and the 'rotator' gets glued to the underside mechanism. You'll need a skewer as well, as shown briefly in the video. Sorry about the lack of instructions.
Iris_Bottom.stl | 119.6KB | |
Iris_Case_Bottom.stl | 135.4KB | |
Iris_Case_Top.stl | 98.5KB | |
Iris_Fin.stl | 65.7KB | |
Iris_Rotator.stl | 57.8KB | |
Iris_Top.stl | 198.1KB |